Pulsar Dual Fuel Inverter Generator 4000W GX400BN - Portable, CO Alert, USB, 30A RV, Quiet
Pulsar Dual Fuel Inverter Generator 4000W GX400BN - Portable, CO Alert, USB, 30A RV, Quiet
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Pulsar Dual Fuel Inverter Generator 4000W GX400BN - Portable, CO Alert, USB, 30A RV, Quiet

129 ratings

Key item features

  • Versatile Fueling: Operates on dual fuel (gasoline or propane) for flexible power generation, ideal for various applications including home backup and RVs.
  • Robust Performance: Delivers 4000 peak watts and 3200 running watts on gasoline, with a 149cc 4-stroke engine providing 4.35 HP.
  • Quiet Operation: Features a super quiet design, producing approximately 62 dB at half-load, suitable for noise-sensitive environments.
  • Extended Runtime: Offers an impressive 8-hour run time at half-load on gasoline, supported by a 2.11-gallon fuel tank.
  • Convenient Mobility: Equipped with a trolley design, handles, and a mobility kit for easy maneuvering and transport.
  • Comprehensive Outlets: Includes multiple AC/DC outlets: (2) 120V/20A, (1) 120V/30A, DC cigar lighter 12V, and USB 5V/1A, 5V/2.1A, plus 30A RV compatibility.
  • Enhanced Safety: Incorporates a CO Alert system, low oil shut-off, and a 3-in-1 LED display for digital hour meter and volt meter.
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Specs

Continuous wattage, 4000 WattsFuel type, Dual FuelRun time, 8 hSurge wattage, 4000 WattsDecibel rating, 62 dBOutlets, 3

About this item

Product details

The Pulsar GX400BN Dual Fuel 4000W Inverter Generator delivers reliable portable power wherever you need it. This dual fuel inverter generator runs on gasoline or propane, making it perfect for home backup, RVs, camping, or outdoor projects. With a quiet 62 dB operation, multiple outlets including USB and 30A RV, and a long 8-hour run time, it provides clean, stable energy for sensitive electronics. Built-in safety features like low oil shut-off and a digital hour meter ensure hassle-free operation. Portable, versatile, and CARB/EPA compliant, this generator inverter dual fuel model is an efficient and dependable power solution.
  • Description: Dual fuel 4000w inverter generator with co alarm
  • Fuel Type: Dual fuel
  • Peak Power: 4000
  • Running Power: 3200
  • Displacement(cc): 149
  • Power Output (hp): 4.35
  • Engine Type: 4 stroke, air cool, OHV
  • Engine Oil Capacity(oz): 21
  • Low Oil Shut Off: Yes
  • Fuel Gauge: Yes
  • Starter Type: Recoil
  • Noise Level: 62
  • Engine Family: PCSPS.1491XA
  • Gallons/Hour at Half Load(gasoline): 0.3
  • lbs/Hour at Half Load(propane): 1.75
  • Run Time at Half Load(hour): 8
  • Fuel Tank Capacity: 2.11
  • Voltage Rating: 120
  • Amperage (120V Rated/Peak): 25
  • Amperage (240V Rated/Peak):
  • AC/DC Output Outlets: (2)120V/20A, (1)120V/30A, DC Cigar lighter 12 V and USB 5V/1A 5V/2.1A
  • 120V Twist Outlet: No
  • 120V/240 Twist: No
  • 30 AMP RV: Yes
  • 50 AMP: No
  • GFCI Outlets: No
  • Outlet Covers: Yes
  • Digital Hour Meter: 3 in 1 LED display
  • Volt Meter: 3 in 1 LED display
  • Parallel Capability: Yes
  • Automatic Voltage Regulation: Yes
  • Battery: No
  • Frame: Plastic
  • Handles: Yes
  • Mobility Kit: Yes
  • Oil Included: Yes
  • EPA: Yes
  • CARB: Yes
  • 4000 peak watts
  • 3200 running watts
  • 3700 peak watts
  • 3000 running watts on propane
  • Its high speed 5.5HP 149cc engine is great for emergency home backup power generation
  • Super quiet, making around 62db at half-load
  • The GX400BN trolley design allows the generator to easily be maneuvered and transported wherever needed
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Continuous wattage

4000 Watts

Fuel type

Dual Fuel

Run time

8 h

Surge wattage

4000 Watts

Warranty

Warranty information

1 Year Limited Manufacturer Warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.2 out of 5 stars
stars
129 ratings55 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars65% (84)
  2. 4 stars13% (17)
  3. 3 stars3% (4)
  4. 2 stars5% (6)
  5. 1 star14% (18)

Reviews summary

Pros

  • : The unit starts reliably and powers rv ac for hours.
  • : The item provides good value relative to its features.
  • : The generator powered cooling appliances and a freezer for 24 hours.

Cons

  • : The panel does not show watts or track run time.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 55 reviews

Oct 13, 2026
Reviewer name: anonymous
Item details
Continuous wattage: 4000 W
Sold and shipped byExplorer Bear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works perfectly on propane.

Helpful?1K7EEJEXQTNT5130396530
Jul 20, 2026
Reviewer name: Sara
Item details
Continuous wattage: 4000 W
Sold bySkytechDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great generator. So glad I bought it. 62lbs not to heavy. It's pretty quiet.

Helpful?1K7EEJEXQTNT5130396530
Jul 1, 2026
Reviewer name: Scott
Item details
Continuous wattage: 4000
Sold bySkytechDelivered byWalmart
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Back up to the Back up

Nice little unit. I got it to do two things: - Recharge my battery backup system during power outages - Run some tools when I'm working away from grid power. No complaints on either task. Telescoping handle is a nice feature! I did have to adjust the valve lash right out of the box though. There are YouTube videos on this model so search them out if you're interested in more information on that. Dual fuel is also a nice feature. Generator started on one pull regardless of which fuel I was using. I don't camp, but I can't imagine sitting around the campfire listening to this thing. It's not overly loud, but you know it's there!

Helpful?1K7EEJEXQTNT5130396530
Current price is $499.00
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$499.00
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4.5 stars out of 5, based on 648 seller reviews(4.5)
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